Achievement Tests
Tests that attempt to measure what the test-taker has accomplished.
i.e. classroom tests at the end of a unit
Aptitude Tests
Tests that attempt to predict the test-taker’s future performance.
Examples: ACT and SAT
Reliability
The extent to which a test yields consistent results, regardless of who gives the test or when or where it is given. -Types of Reliability
Test-retest reliability - taking the same test and receiving a similar score
Split-half - the score on one half of a test’s questions is similar to the score on the other half
Scorer reliability – the score of the test should be similar no matter which scorer is scoring the test
Validity
-The extent to which a test measures or predicts what it is suppose to test.
-Does an achievement test accurately measure accomplishments?
-Does an aptitude test accurately measure the person’s future performance?
-One needs to know the purpose of the test
Tests that attempt to measure what the test-taker has accomplished.
i.e. classroom tests at the end of a unit
Aptitude Tests
Tests that attempt to predict the test-taker’s future performance.
Examples: ACT and SAT
Reliability
The extent to which a test yields consistent results, regardless of who gives the test or when or where it is given.
-Types of Reliability
Test-retest reliability - taking the same test and receiving a similar score
Split-half - the score on one half of a test’s questions is similar to the score on the other half
Scorer reliability – the score of the test should be similar no matter which scorer is scoring the test
Validity
-The extent to which a test measures or predicts what it is suppose to test.
-Does an achievement test accurately measure accomplishments?
-Does an aptitude test accurately measure the person’s future performance?
-One needs to know the purpose of the test